This 21 PCS M35 Cobalt, HSS Twist Jobber Drill Bits worked well on the first project I tried them on. I drilled 1/4 holes in 1/8 angle iron tabs. I drilled about 12 pieces with two holes in each. I used oil while drilling them on the drill press. I had no issues and the bits worked as expected. They came in a nice case with a decent selection of bit sizes. They did the job I needed done, they made holes in 1/8 thick angle iron. The 1/4 inch bit drilled the last hole as well as it did the first. Good set to have in the drill bit drawer.

This is a great all-around drill set that lets you drill into different kinds of materials. Extra drill bits for those high-use sizes. I love this drill set for my quick connect system and my Dewalt drill. This set is a win get it now!

Happy with these so far. Seem to be made well. Also, I like that they fit in one case.

These taps and drills are excellent! The taps are sharp and thread through with minimal effort, the drills are sharp and durable! Really impressed with the set as I have installed multiple fasteners in cast iron with even the 3mm tap and it works great! The ratchet handle is a welcome addition to the normal tap bar!